The letter U is pronounced ▶ Play. This sound doesn’t exist in English, but if you start with the i sound in kid and then make your lips round, you will get the Icelandic u.
It can be long:
  • sumar, hlutir
Or short:
  • vinur, kunna, tuttugu
If the next letter is ng or nk, it is pronounced like ú:
  • þungur ([þúngur]), punktur ([púnktur])
The name of the letter is “u”.